Implementing 5.1. seeing that Connect is not adding soapheader with action

Implementing 5.1. seeing that Connect is not adding soapheader with action

We would like to know as it is expected for the Soap message to have a header with an action, why is this header being removed when it goes to our services. We have implemented the patient discovery but when we expect the findPatients request, it has no header and we are failing. This wasn't the case in previous connect.

our service is expecting the soap:Header section in the incoming message
and that is not coming from CONNECT gateway

We are using .NET and using the Message library to implement the services. The error we get is: